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Coronaviruses are a group of viruses known for causing the common cold. They have a halo or crown-like (corona) appearance when viewed under an electron microscope. The common cold is an infection of the upper respiratory tract which can be caused by many different viruses.
4 dni temu · SARS-CoV-2 (the virus that causes COVID-19), influenza virus (the virus that causes flu), and respiratory syncytial virus (RSV) can also cause cold-like symptoms but do not cause colds. These respiratory viruses are more likely to cause severe illness.
24 maj 2023 · The common cold is an illness affecting your nose and throat. Most often, it's harmless, but it might not feel that way. Germs called viruses cause a common cold. Often, adults may have two or three colds each year. Infants and young children may have colds more often.
8 wrz 2024 · Common cold, acute viral infection that starts in the upper respiratory tract, sometimes spreads to the lower respiratory structures, and may cause secondary infections in the eyes or middle ears. More than 200 agents can cause symptoms of the common cold.
The common cold is a viral infection of the lining of the nose, sinuses, and throat. Many different viruses cause colds. Usually, colds are spread when a person's hands come in contact with nasal secretions from an infected person.
13 kwi 2009 · The cold is the most common illness known, bringing the sneezing, scratchy throat and runny nose that we're all familiar with. People in the United States have an estimated 1 billion colds each year. More than 200 different viruses are known to cause the symptoms of the common cold.
16 maj 2023 · Learn about the different types of viruses that can cause a cold, how they spread, and when they strike. Find out what's not causing your cold and how to prevent or treat it.
